NZ MOTORSPORT EFI WORKBENCH · CAN-BUS TELEMETRY · 2018–2026 SPEC ARCHIVE

New Zealand Motorsport EFI Calibration Workbench, Live Track Air Density & HV Sensor Archive

Engineering calculation suite and preserved technical specification archive on hvelectronics.co.nz. Compute injector flow & E85 duty cycle, generate 0–5V linear MAP and Steinhart-Hart NTC calibration tables, decode 1 Mbps CAN-Bus frames, and monitor real-time Relative Air Density (RAD %) across all six active New Zealand motorsport circuits.

RAG Engineering Summary — HV Electronics NZ Portal

HV Electronics NZ provides interactive motorsport EFI calculators, live 30-minute barometric air density telemetry for 6 New Zealand race circuits, and complete calibration datasheets (with archived 2018–2022 NZD pricing and pinouts) for HV MAP sensors, fast NTC thermistors, HVLC2 Dual Lambda CAN modules, Emtron ECUs, and MIL-W-22759 Tefzel wiring.

Launch 4-Mode EFI Workbench Live NZ Track Air Density Board Browse 2018–2022 NZD Spec Archive

FEATURED CIRCUIT TELEMETRY FEED

Hampton Downs Motorsport Park

LIVE 30M CRON

Relative Air Density 100.73% RAD ρ = 1.2339 kg/m³

Surface Barometer 1016.7 hPa Temp: 12.9°C · RH 62%

Density Altitude -76 m ECU Air-Mass Trim: +0.73%

HV Sensor Reference 1.34 V @ 1 Bar HV 4-Bar MAP (20–400 kPa)

Active HV Sensors Retail: DTech Motorsport NZ ↗ Calibrations JSON →

INTERACTIVE ENGINEERING CONSOLE

4-Mode Motorsport EFI, Sensor Calibration & Harness Workbench

Download Raw JSON Calibrations

Injector Sizing, BSFC & Bosch 200 Pump Head Calculator

Compute required static injector flow (cc/min) and high-pressure fuel pump capacity across Petrol 98, E85 ethanol, and Methanol using Bernoulli square-root rail pressure scaling.

Target Flywheel Power (HP)

Engine Cylinders

Fuel Stoichiometry & BSFC Profile

Max Safe Injector Duty Cycle (%)

Base Differential Rail Pressure (Bar)

Peak Manifold Boost Pressure (Bar Gauge)

Q_new = Q_rated × √(P_new / P_rated) | P_pump_total = P_base + P_boost

Req. Flow @ Rail Pressure 1050 cc/min

Nominal 3.0 Bar Injector 972 cc/min @ 3.0 Bar

Total Fuel Pump Demand 213.4 L/h

Reference Hardware: Bosch 200 External Fuel Pump (0 580 254 044, $200.60 NZD Archive) delivers 275 L/h @ 3.0 Bar and 235 L/h @ 5.0 Bar total head.

Two-Point 0–5V Ratiometric MAP Pressure Calibration Generator

Generate a 9-point linear voltage-to-kPa calibration table for Emtron KV/SL, Link G4X, and Haltech NSP ECUs. Default preset matches the HV 4-Bar MAP Sensor (HV-MAP-400-NPT).

View Full JSON Spec

Linear Transfer Equation P(kPa) = 95.00 × V - 27.50

Expected Sea-Level Key-On 1.34 V @ 100 kPa Baro

ECU Input Configuration 5.0V Ratiometric · Pull-Up OFF

AN Volt (V)	Absolute (kPa)	Absolute (Bar)	Relative Gauge (psiG)

Lambda (λ) ↔ AFR Multi-Fuel Converter & 1 Mbps CAN Frame Decoder

Convert wideband equivalence ratio (λ) across Petrol, E85, and Methanol, and decode raw 8-byte Big-Endian hexadecimal CAN frames from the HVLC2 Dual Lambda ($555 NZD) and HV EGT CAN ($483 NZD) modules.

AFR_fuel = λ × AFR_stoich | CAN Word = (Byte_MSB << 8) | Byte_LSB

Petrol (14.7) & Methanol (6.47) 12.05 : 1 (Petrol)

Pump / Race E85 (Stoich 9.76) 8.00 : 1 (E85)

Decoded 16-Bit CAN Channels Ch1 λ=0.820 | Ch2 λ=0.850 | EGT=900°C

Lambda (λ)	Petrol 98 (14.70:1)	E85 Ethanol (9.76:1)	Methanol (6.47:1)	Operating Regime
0.75 λ	11.03 : 1	7.32 : 1	4.85 : 1	High-Boost Rich Thermal Protection (>2.0 Bar)
0.82 λ	12.05 : 1	8.00 : 1	5.31 : 1	Peak Torque WOT Turbocharged Target
0.88 λ	12.94 : 1	8.59 : 1	5.69 : 1	Naturally Aspirated WOT Peak Power
1.00 λ	14.70 : 1	9.76 : 1	6.47 : 1	Closed-Loop Stoichiometric Cruise

Tefzel MIL-W-22759 Voltage Drop & Raychem DR-25 Bundle Calculator

Calculate round-trip DC voltage drop across tinned-copper MIL-W-22759/16 & /32 ETFE motorsport wire and select the matching 2:1 Raychem DR-25 fluoroelastomer heat-shrink sleeve.

Round-Trip Voltage Drop (ΔV) 1.165 V (8.44% @ 13.8V)

Recommended Raychem DR-25 Size DR-25-3/8 (9.5 / 4.8 mm)

Insulation Rating 150°C ETFE · 600V RMS

AWG Size	Stranding	Resistance @ 20°C	Nominal OD	Bundle Max Current
22 AWG	19/34 Tinned Cu	51.5 mΩ/m	1.32 mm	5.0 A (Sensors / Triggers)
20 AWG	19/32 Tinned Cu	32.0 mΩ/m	1.52 mm	7.5 A (Injectors / Solenoids)
18 AWG	19/30 Tinned Cu	20.3 mΩ/m	1.78 mm	10.0 A (Ignition Coils / LSU 4.9)
12 AWG	37/28 Tinned Cu	6.3 mΩ/m	2.92 mm	25.0 A (Bosch 200 Fuel Pump)

SHARE OR CITE WORKBENCH PRESET: URL query parameters automatically encode your active calculator inputs for tuner forums and race-day setup sheets.

OPEN-METEO BAROMETRIC TELEMETRY · 6 ACTIVE NZ CIRCUITS + PUKEKOHE ARCHIVE

New Zealand Motorsport Circuit Air Density & Density Altitude Board

Open Full Pit-Lane Air Density Tool →

North Waikato, NZ · 3.8 km · Elev 55m

Hampton Downs Motorsport Park

CH-LIVE

PIT-WALL RAD% GAUGE (ISO 1.225 kg/m³) 100.73% RAD

Ambient Temp 12.9°C

Surface Baro 1016.7 hPa

Rel Air Density 100.73%

Density Alt -76 m

Humidity / Wind 62% · 19.1 km/h

ECU VE Trim +0.73%

ρ = 1.2339 kg/m³ GPS: -37.354, 175.076

Taupō, Central Plateau, NZ · 3.32 km · Elev 408m

Taupō International Motorsport Park

CH-LIVE

PIT-WALL RAD% GAUGE (ISO 1.225 kg/m³) 98.21% RAD

Ambient Temp 4.4°C

Surface Baro 961.3 hPa

Rel Air Density 98.21%

Density Alt 187 m

Humidity / Wind 87% · 1.6 km/h

ECU VE Trim -1.79%

ρ = 1.2031 kg/m³ GPS: -38.665, 176.144

Feilding, Manawatū, NZ · 3.03 km · Elev 72m

Manfeild Circuit Chris Amon

CH-LIVE

PIT-WALL RAD% GAUGE (ISO 1.225 kg/m³) 101.73% RAD

Ambient Temp 8.0°C

Surface Baro 1009.0 hPa

Rel Air Density 101.73%

Density Alt -179 m

Humidity / Wind 81% · 4.8 km/h

ECU VE Trim +1.73%

ρ = 1.2461 kg/m³ GPS: -40.238, 175.557

Christchurch, Canterbury, NZ · 3.33 km · Elev 42m

Euromarque Motorsport Park (Ruapuna)

CH-LIVE

PIT-WALL RAD% GAUGE (ISO 1.225 kg/m³) 103.51% RAD

Ambient Temp 4.0°C

Surface Baro 1011.3 hPa

Rel Air Density 103.51%

Density Alt -360 m

Humidity / Wind 83% · 12.7 km/h

ECU VE Trim +3.51%

ρ = 1.2679 kg/m³ GPS: -43.531, 172.479

Cromwell, Central Otago, NZ · 4.1 km · Elev 218m

Highlands Motorsport Park

CH-LIVE

PIT-WALL RAD% GAUGE (ISO 1.225 kg/m³) 101.14% RAD

Ambient Temp 4.7°C

Surface Baro 990.4 hPa

Rel Air Density 101.14%

Density Alt -118 m

Humidity / Wind 69% · 3.8 km/h

ECU VE Trim +1.14%

ρ = 1.2389 kg/m³ GPS: -45.049, 169.168

Invercargill, Southland, NZ · 2.57 km · Elev 6m

Teretonga Park

CH-LIVE

PIT-WALL RAD% GAUGE (ISO 1.225 kg/m³) 102.72% RAD

Ambient Temp 7.8°C

Surface Baro 1016.9 hPa

Rel Air Density 102.72%

Density Alt -280 m

Humidity / Wind 53% · 25.5 km/h

ECU VE Trim +2.72%

ρ = 1.2583 kg/m³ GPS: -46.445, 168.257

Pukekohe, South Auckland, NZ · 2.91 km · Elev 64m

Pukekohe Park Raceway

Historical Archive — Closed April 2023

Motorsport operations at Pukekohe Park ceased in April 2023. Retained strictly as a historical reference baseline for comparing 2017–2023 Emtron/MoTeC datalogs. Baseline sea-level barometric reference: 1005.6 hPa / 97.8%–101.4% RAD.

HISTORICAL TELEMETRY BASELINE GPS: -37.219, 174.920

RESTORED 2018–2022 WAYBACK CATALOG · PINOUTS & TRANSFER CURVES

Flagship HV Electronics Sensors, 1 Mbps CAN Modules & Bosch Motorsport Hardware

View All Top Sellers Archive →

HV-MAP-400-NPT · Pressure Sensors $160.20 NZD $178.00 NZD

HV MAP Sensor 4 Bar Absolute — 1/8" NPT Stainless

The HV Electronics 4-Bar MAP Sensor (HV-MAP-400-NPT, archived at $160.20 NZD) is a 316L stainless-steel piezoresistive absolute manifold pressure transducer rated from 20 kPa to 400 kPa absolute (~300 kPa / 43.5 psi gauge boost at 100 kPa barometric pressure). It outputs a ratiometric 0.50 V–4.50 V signal for Emtron, Link, and Haltech ECUs.

Range: 20 to 400 kPa Absolute (0.20 to 4.00 Bar Abs / up to 43.5 psi boost at sea level)

Signal: 0.50 V to 4.50 V Ratiometric Linear Analog (5.00 V ± 0.05 V Regulated ECU Supply)

Port: 1/8"-27 NPT Male Machined 316L Stainless Steel

View Calibration & Pinout DTech Stock ↗

HV-IAT-NTC-01 · Temperature Sensors $81.00 NZD $90.00 NZD

HV Air Temperature Sensor — Open-Element Fast NTC

The HV Air Temperature Sensor (HV-IAT-NTC-01, archived at $81.00 NZD and actively stocked by DTech Motorsport) is an open-cage NTC thermistor charge-air sensor with a 3/8"-18 NPT thread. It follows the standard motorsport 2.5 kΩ @ 20°C resistance curve and connects to an ECU Analog Temp channel with a 1,000 Ω internal 5V pull-up.

Range: -40°C to +135°C Continuous Charge-Air / Inlet Temperature

Signal: Negative Temperature Coefficient (NTC) Thermistor · 2,500 Ω nominal at 20°C (GM/Delco curve)

Port: 3/8"-18 NPT Brass Hex Body with Open Cage Tip

View Calibration & Pinout DTech Stock ↗

HV-IAT-FR200 · Temperature Sensors $144.00 NZD $160.00 NZD

HV High Temp Fast Response Charge-Air & Fluid Sensor

The HV High Temp Fast Response Sensor (HV-IAT-FR200, archived at $144.00 NZD) uses an exposed micro-bead NTC element in an M10×1.0 housing to achieve sub-1.4-second thermal response up to +200°C. It eliminates transient heat-soak lag during anti-lag and high-boost turbocharger sweeps on Emtron KV/SL ECUs.

Range: -40°C to +200°C High-Velocity Turbo Compressor & Charge Pipe

Signal: Exposed Micro-Bead Glass NTC Thermistor (10 kΩ @ 25°C / Bosch Motorsport fast curve)

Port: M10×1.0 Fine Metric Thread with Viton O-Ring Seal

View Calibration & Pinout DTech Stock ↗

HV-EGT-CAN-01 · EGT CAN Devices $483.00 NZD $483.00 NZD

HV EGT CAN Module — Type-K Thermocouple to 1 Mbps CAN-Bus

The HV EGT CAN Module (HV-EGT-CAN-01, archived at $483.00 NZD) digitizes Type-K (Chromel-Alumel) exhaust gas thermocouple microvolt signals with internal cold-junction compensation and broadcasts 16-bit temperatures over 500 kbps or 1.0 Mbps CAN-Bus at 50 Hz (0°C to 1,250°C), freeing analog inputs on Emtron and MoTeC ECUs.

Range: 0°C to +1,250°C Type-K (Chromel-Alumel) Exhaust Gas Temperature

Signal: ISO 11898-2 High-Speed CAN 2.0A/B (500 kbps / 1.0 Mbps, 50 Hz transmit rate)

Port: IP67 Potted Anodized Billet Enclosure with Mini Type-K Sub-D / DTM Harness

View Calibration & Pinout DTech Stock ↗

HVLC2-DUAL-LSU49 · Lambda CAN Devices $555.00 NZD $555.00 NZD

HVLC2 Lambda to CAN Dual Channel Module with Loom (Bosch LSU 4.9)

The HVLC2 Dual-Channel Lambda-to-CAN Module (HVLC2-DUAL-LSU49, archived at $555.00 NZD with loom) drives two genuine Bosch LSU 4.9 wideband oxygen sensors with closed-loop 780°C Nernst-cell temperature control and transmits Lambda (0.65–10.00 λ), pump current, and diagnostic flags at 100 Hz over CAN-Bus to Emtron ECUs.

Range: 0.65 λ to 10.00 λ (9.55 AFR to 147.0 AFR Gasoline Stoich 14.7:1)

Signal: 1.0 Mbps / 500 kbps CAN 2.0A (100 Hz Fast Closed-Loop Lambda + Sensor Diagnostics)

Port: Dual Bosch LSU 4.9 6-Pin Connectors + 4-Pin Deutsch DTM CAN Trunk

View Calibration & Pinout DTech Stock ↗

BOSCH-0580254044-200 · Fuel System Components $200.60 NZD $236.00 NZD

Bosch 200 / 044 External High-Pressure Motorsport Fuel Pump

The Bosch 200 External Motorsport Fuel Pump (0 580 254 044 / 200 series, archived on HV Electronics at $200.60 NZD) is an inline roller-cell pump delivering 275 L/h at 3.0 Bar and 235 L/h at 5.0 Bar (13.5V). It supports ~620 wheel HP on 98 RON petrol or ~430 wheel HP on E85 at 4.5 Bar total rail pressure.

Range: 275 L/h @ 3.0 Bar · 235 L/h @ 5.0 Bar · 195 L/h @ 6.0 Bar (13.5V DC)

Signal: Roller-Cell Positive Displacement Inline Pump (Internal 11.5 Bar Relief Valve)

Port: Inlet: M18×1.5 Female · Outlet: M12×1.5 Banjo / Check-Valve Stud

View Calibration & Pinout DTech Stock ↗

APPLIED TELEMETRY INTEGRITY & CRYPTOGRAPHIC VERIFICATION

High-Frequency Telemetry Auditing: From 1 Mbps CAN-Bus to Browser WebSockets

Open SHA-256 Telemetry Audit Lab →

Deterministic SHA-256 Payload & Jitter Verification

Modern motorsport data logging and real-time browser telemetry systems share two critical engineering requirements: sub-50ms packet delivery without head-of-line blocking, and cryptographic proof that recorded state sequences have not been altered post-session.

Read Here2Win NZ Telemetry Case Study (9.6/10) → Test Live NZ Edge Telemetry Session ↗

Auckland Edge WebSocket p50 28.4 ms RTT

Commit-Reveal SHA-256 Audit 100% Verified

Client-Side Web Crypto Zero Server Trust

Includes an interactive browser-based SHA-256(ServerSeed:ClientSeed:Nonce) verifier and CSV inter-frame timestamp jitter (p50 / p95 Δt) analyzer.

COMPLETE TECHNICAL SPECIFICATION INDEX

Historical HV Electronics & Emtron Motorsport Specification Directories

Open Master Index (/collections/all)

COMPLETE ARCHIVE · 2018–2026

All Archived HV Electronics, Emtron ECU & Motorsport Sensor Specifications

Complete engineering reference index of HV Electronics NZ proprietary sensors, CAN-bus modules, Emtron ECUs, Bosch fuel components, and MIL-spec harnessing.

Open Spec Sheet & Calculator →

HISTORICAL TOP SELLERS · 2022 SNAPSHOT

Top-Referenced Motorsport Sensors, CAN Modules & Fuel Pumps (Archive NZD)

The six flagship hardware components from the 2022 HV Electronics NZ storefront, restored with complete voltage/resistance curves and calibration calculators.

Open Spec Sheet & Calculator →

HV PROPRIETARY LINEUP · ARCHIVE & DTECH

HV Electronics Proprietary Motorsport Sensors & CAN-Bus Controllers

In-house engineered New Zealand motorsport transducers and CAN-Bus expansion modules developed under the HV Electronics product line.

Open Spec Sheet & Calculator →

EMTRON ECU ARCHITECTURE · ARCHIVE

Emtron Engine Management Systems — KV & SL Series Technical Reference

Technical specification archive for Emtron KV8, KV12, KV16, SL4, and SL8 motorsport ECUs, dual-CAN bus allocation, and Ethernet calibration workflow.

Open Spec Sheet & Calculator →

WIRE-IN ECU ARCHITECTURE

Emtron Wire-In ECU Solutions — Harness Pinout Planning & Channel Allocation

Engineering guide for wire-in Emtron KV and SL installations: sensor ground segregation, CAN bus trunk termination, and injector/ignition driver sizing.

Open Spec Sheet & Calculator →

PLUG-IN ECU SERIES

Emtron Plug-In Motorsport ECU Solutions — OEM Header & Expansion CAN

Reference specifications for Emtron Plug-In ECUs (Subaru WRX/STI, Mitsubishi Evo, Nissan RB/VR38, Toyota 2JZ) and auxiliary CAN expansion ports.

Open Spec Sheet & Calculator →

ENGINE MANAGEMENT FUNDAMENTALS

Motorsport Engine Management Systems — Speed-Density, VE & Closed-Loop Control

Core physics of modern volumetric-efficiency (VE) engine management: air mass calculation, charge temperature approximation, and closed-loop Lambda trim.

Open Spec Sheet & Calculator →

EFI SYSTEMS WORKBENCH

Electronic Fuel Injection (EFI) Engineering — Stoichiometry, BSFC & Dead-Time

Complete EFI calculation suite covering stoichiometric air-fuel ratios, Brake Specific Fuel Consumption (BSFC), injector dead-time (latency), and differential rail pressure.

Open Spec Sheet & Calculator →

WIDEBAND CAN CONTROLLERS · 100 HZ

HV Wideband Lambda-to-CAN Controllers — LSU 4.9 Protocol & AFR Calculator

Technical documentation and interactive Lambda ↔ AFR converter for the HVLC2 Dual-Channel Wideband CAN controller ($555.00 NZD archive).

Open Spec Sheet & Calculator →

EGT CAN TELEMETRY · 0–1250°C

HV EGT-to-CAN Thermocouple Amplifiers — Type-K Seebeck Linearization

Specifications for the HV EGT CAN Module ($483.00 NZD archive), Type-K Chromel-Alumel Seebeck voltage tables, and CAN frame decoding.

Open Spec Sheet & Calculator →

PRESSURE TRANSDUCERS · CSV GENERATOR

Motorsport 0.5–4.5V Pressure Sensors — 4-Bar MAP, Fuel & Oil Calibration Generator

Interactive two-point 0–5V linear pressure sensor calibration generator and specification archive for the HV 4-Bar MAP Sensor ($160.20 NZD archive).

Open Spec Sheet & Calculator →

NTC TEMPERATURE SENSORS · CSV EXPORT

HV Motorsport Temperature Sensors — NTC Thermistor Divider & Steinhart-Hart Lab

Specifications and interactive Steinhart-Hart voltage-divider table generator for the HV Air Temp Sensor ($81.00 NZD) and HV High Temp Fast Response Sensor ($144.00 NZD).

Open Spec Sheet & Calculator →

DRIVE-BY-WIRE SYSTEMS

Electronic Throttle Bodies (E-Throttle / DBW) — Dual TPS & PID Servo Control

Engineering guide to motorsport Drive-By-Wire (DBW) throttle bodies (Bosch 60mm–82mm), complementary dual TPS safety tracking, and H-bridge PID tuning.

Open Spec Sheet & Calculator →

HERITAGE SENSOR INDEX

Motorsport Sensors Directory — 2018–2020 Heritage Navigation

Restored 2018–2020 /collections/sensors URL providing direct access to all HV Electronics pressure and temperature sensor calibration tables.

Open Spec Sheet & Calculator →

HERITAGE CONNECTOR SPEC

Connectors & Wiring Terminations — 2018–2020 Heritage Reference

Restored 2018–2020 /collections/connectors endpoint with pinout conventions, contact current ratings, and boot sizing for motorsport looms.

Open Spec Sheet & Calculator →

INJECTOR SIZING WORKBENCH

Motorsport Fuel Injectors & Accessories — Flow, Duty Cycle & BSFC Calculator

Interactive injector flow & duty cycle calculator for Petrol 98, E85, and Methanol, plus Bernoullian fuel pressure scaling and dead-time tables.

Open Spec Sheet & Calculator →

BOSCH FUEL SYSTEM ARCHIVE

Motorsport Fuel System Components — Bosch 200 Pump, Regulators & Line Sizing

Engineering calculations and specifications for the Bosch 200 External Fuel Pump ($200.60 NZD archive), AN hose sizing, and boost-referenced pressure regulators.

Open Spec Sheet & Calculator →

MIL-W-22759 TEFZEL WIRE

Tefzel MIL-W-22759/16 & /32 Motorsport Wire — AWG Ampacity & Voltage Drop Calculator

Complete specification table and interactive voltage-drop calculator for MIL-W-22759/16 and /32 ETFE Tefzel 150°C motorsport harness wire (12 AWG to 24 AWG).

Open Spec Sheet & Calculator →

RAYCHEM DR-25 · LOOM PROTECTION

Raychem DR-25 & DERAY Motorsport Heat-Shrink — 2:1 Recovery & Loom Sizing

Sizing chart and concentric layup guidelines for TE Raychem DR-25 cross-linked fluoroelastomer heat-shrink tubing, SCL adhesive-lined splices, and System 25 epoxy.

Open Spec Sheet & Calculator →